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Finding the Fourth Proportional to 18,358.72, 27,544.32 and 6,672.88

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Solution

The fourth proportional to 18,358.72, 27,544.32 and 6,672.88 is: 10,011.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.72 : 27,544.32 = 6,672.88 : x
  2. Step 2: Convert to fraction form
    18,358.72/27,544.32 = 6,672.88/x
  3. Step 3: Cross multiply
    18,358.72x = 27,544.32 × 6,672.88
  4. Step 4: Simplify right side
    18,358.72x = 183,799,942.04
  5. Step 5: Solve for x
    x = 183,799,942.04/18,358.72
  6. Step 6: Final answer
    x = 10,011.59

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.